Did you follow these instructions:
https://proconnect.intuit.com/community/form-1040/help/how-do-i-import-scanned-source-documents-with...
https://proconnect.intuit.com/community/form-w-2/help/tax-scan-and-import-and-financial-institution-...
https://proconnect.intuit.com/proseries/integrations/tax-import/
